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251 Commits

Author SHA1 Message Date
Howard Chu
19e4df476d Fix subcursor initialization 2011-10-06 16:12:52 -07:00
Howard Chu
934a19553c Don't use Append mode when splits are caused by sub-page inserts 
Sub-pages need room to grow...
 2011-10-03 18:02:17 -07:00
Howard Chu
ea0d07ffa3 Fix freelist bug on page split 
NULL out env->pghead before writing it, so that its pages can't be used
to satisfy the write.
 2011-10-03 12:40:53 -07:00
Howard Chu
85bfb3c1d1 Add rudimentary MDB_MULTIPLE support for puts 
Only for DUPFIXED DBs. Still could do better.
 2011-10-03 11:28:14 -07:00
Howard Chu
fa3c2945f5 Add MDB_APPEND to avoid splitting full pages 2011-10-02 21:27:07 -07:00
Howard Chu
163514e470 Fix 6e05ca17e9 
Missed a MDB_RESERVE case
 2011-10-02 19:52:12 -07:00
Howard Chu
28b8aaeb96 Add mdb_cursor_txn() and mdb_cursor_dbi() for querying the cursor 2011-10-02 19:28:33 -07:00
Howard Chu
6e05ca17e9 Add MDB_RESERVE mode 
When putting a record, just make space for the data, don't copy it.
(Not compatible with MDB_DUPSORT, since the actual data is needed
to determine the insert location.)
 2011-10-02 10:02:30 -07:00
Howard Chu
fe11433619 Tweak cursor adjustment code 
Skip the original cursor that made the change
 2011-09-30 22:15:05 -07:00
Howard Chu
19d1e72bbc Make sure mdb_open actually got a sub-db record 2011-09-29 21:07:07 -07:00
Howard Chu
fa0d64242b Doc for the MDB_NOSUBDIR env option 2011-09-22 21:46:12 -07:00
Howard Chu
7a40080dd1 Add MDB_NOSUBDIR option 
Create the data file using exactly the given pathname, and
the lock file using a suffix on the data file name.
 2011-09-22 18:05:06 -07:00
Howard Chu
54eb76cc7a Reader table notes 2011-09-22 04:34:40 -07:00
Howard Chu
4bcaabecf5 assert cleanup 2011-09-21 17:21:48 -07:00
Howard Chu
619e671f1c txn_abort/commit free all their cursors now. 2011-09-21 16:37:29 -07:00
Howard Chu
9bcc51ef5d Only free malloc'd cursors 2011-09-21 16:06:52 -07:00
Howard Chu
b9d13a29e6 Track changes to all cursors. 
For any change to a page or node, update all other cursors pointing
at the same page (or node). Cursors are now stored in a linked list
off their owning transaction. Cursors are all closed when the transaction
ends. Cursors in parent transactions are updated when their child
transaction commits.
 2011-09-21 15:55:27 -07:00
Howard Chu
c4d5e6e786 Add support for nested transactions. 2011-09-21 12:58:43 -07:00
Hallvard Furuseth
8fa10ae668 libmdb IDL cleanup. 
Microoptimize IDL search.
Use RANGE_<FIRST/LAST> when IDL is known to be a range.
 2011-09-19 10:27:49 +02:00
Howard Chu
02abfb91ba Additional fix for prev commit 2011-09-18 18:26:54 -07:00
Howard Chu
4272e7de4f Make sure 2 subpages fit in one real page 2011-09-18 18:13:23 -07:00
Howard Chu
237fabda64 Fix last delete from a subpage 2011-09-18 17:07:47 -07:00
Howard Chu
0ab841598f Fix 09006ccec7 
Check for stale DBs was in the wrong place.
 2011-09-18 16:39:18 -07:00
Howard Chu
2c70d0430a Fix mdb_drop() if not deleting the DB record 2011-09-18 14:22:27 -07:00
Howard Chu
77b1017b85 Fix typo, minor cleanup 2011-09-18 14:12:49 -07:00
Howard Chu
57b5fbea49 Add mdb_drop() for deleting a DB 
Allow MIDLs to grow arbitrarily, to allow unlimited number of
pages to be freed in one txn.
 2011-09-18 12:37:02 -07:00
Howard Chu
09006ccec7 API change, consistency check 
mdb_close() takes an env, not a txn.
Also, add check for stale DB records (in case some other process
wrote to the DB last).
 2011-09-18 10:48:12 -07:00
Howard Chu
b7057eb61e New sorted-dup subpage support 
Instead of converting directly to a subDB when the first duplicate
item is seen for a key, convert to a subpage instead. Allow the
subpage to grow up to the overflow limit, then convert to a subDB.
This saves a significant amount of space in a typical slapd index
database.

Currently we don't convert back to the smaller form if items are
later deleted. Probably could do that with some hysteresis, e.g.,
convert back from subDB to subpage when the size drops below
(overflow limit/2). Maybe later.
 2011-09-17 03:33:07 -07:00
Howard Chu
0a28548131 Use FNV-1A hash to generate unique mutex names 
For Windows and MacOSX
 2011-09-15 10:36:15 -07:00
Howard Chu
2c033676ea Doc tweak - txn flags 2011-09-14 20:33:09 -07:00
Howard Chu
5b7c983a66 MacOSX semaphore names are limited to 31 chars 
Including the terminating NUL. Good job documenting that, guys.
 2011-09-14 20:30:26 -07:00
Howard Chu
0533f80364 Add MacOSX support 
mmap() with FIXEDMAP fails, otherwise things work.
 2011-09-14 11:31:27 -07:00
Howard Chu
e222506b88 Minor doc cleanup 2011-09-14 01:46:08 -07:00
Howard Chu
9e3e7cefd8 More docs 2011-09-14 01:08:01 -07:00
Howard Chu
71a665aa9d Namespace cleanup 2011-09-13 23:36:41 -07:00
Howard Chu
56fe0d4f1a Tweak search_node inner loop to avoid LEAF2 checks 2011-09-13 13:42:02 -07:00
Howard Chu
70c79df1df cursor_set/search_node tweaks, use intcmp when possible 2011-09-13 13:41:40 -07:00
Howard Chu
dc83777ab9 Minor tweaks, update relfunc behavior 2011-09-12 01:15:22 -07:00
Howard Chu
25529a4c36 More cursor_init cleanup 2011-09-11 23:57:17 -07:00
Howard Chu
8acb755034 One more sub-cursor fix 2011-09-11 23:13:36 -07:00
Howard Chu
92a63ff790 Merge branch 'mdb.master' of ssh://git-master.openldap.org/~git/git/openldap into mdb.master 2011-09-11 22:23:35 -07:00
Howard Chu
3501248548 Fix 2e3bc39fa9 
Various mistakes when converting from previous data structures.
Add a few more debug asserts/sanity checks.
Split all "if (foo) return" constructs to separate lines to allow
easier breakpoint setting.

Add mtest6 for checking mdb_split() behavior. This needs to be
expanded to check rebalance/merge cases too.
 2011-09-11 22:17:10 -07:00
Hallvard Furuseth
946b38f471 Fix mdb debug formats 2011-09-11 19:29:24 +02:00
Hallvard Furuseth
ed0fc55fd3 Restore missing LAZY_LOCKS semicolon. 
Lost in C90 compat commit c5dad7a6d0.
 2011-09-11 19:29:24 +02:00
Hallvard Furuseth
90ed553301 mdb integer type cleanup: Use MDB_dbi consistently. 
This changes the prototype of mdb_env_set_maxdbs().
 2011-09-11 19:29:24 +02:00
Hallvard Furuseth
b56be64d2e Drop ULONG in favor of size_t. 2011-09-10 22:49:34 +02:00
Hallvard Furuseth
b1cfff4aeb Add mdb.c:txnid_t for readability. 
Maybe later we'll test txnid wraparound with it defined to ushort.
 2011-09-10 22:49:34 +02:00
Hallvard Furuseth
bf9d722bec mdb type cleanup: Consistent reader count types. 
Use unsigned int for reader counts/max limits, that's the smallest
change.  Don't need uint32_t when mdb_env_set_maxreaders() takes less.
Change prototypes of mdb_env_set_maxreaders,mdb_env_get_maxreaders().
Check the mdb_env_set_maxreaders() argument.
 2011-09-10 22:49:34 +02:00
Hallvard Furuseth
5f68293475 explain mdl_midl_sort() istack size 2011-09-10 22:49:34 +02:00
Hallvard Furuseth
2d1f3b7ed3 Fix memn(r)cmp of key sizes > INT_MAX. Simplify. 2011-09-10 22:49:34 +02:00
Hallvard Furuseth
69e53cf700 Check some mdb integer type assumptions 2011-09-10 22:49:34 +02:00
Hallvard Furuseth
88da18cccf Put MDB_node.<mn_lo,mn_hi> in host byte order. 2011-09-10 22:49:20 +02:00
Hallvard Furuseth
c5dad7a6d0 C90 compatibility cleanup in mdb. 
Fix void* pointer arithmetic in cintcmp().
Fix invalid ';'s in declarations after possibly-empty macros.
 2011-09-10 15:39:02 +02:00
Hallvard Furuseth
3dc8fa491a Cleanup mdb macros. 
Parenthesize.  Rename GetPageSize -> GET_PAGESIZE since it does not
behave like a function (it has a non-pointer output argument).
 2011-09-10 10:11:55 +02:00
Hallvard Furuseth
ec2d82f79a libmdb/.gitignore += test[45], Doxygen output 2011-09-10 10:11:55 +02:00
Howard Chu
acdc248f57 If put(NOOVERWRITE) exists, return existing data 2011-09-09 22:28:07 -07:00
Howard Chu
a7edb95e64 Minor typos, additional clarification 2011-09-09 03:52:12 -07:00
Howard Chu
0c487538cf Partial revert, fix MDB_page definition 2011-09-08 20:18:29 -07:00
Howard Chu
9ac8638d9d More docs 2011-09-08 17:13:51 -07:00
Howard Chu
bed3123b82 More docs 2011-09-08 14:34:21 -07:00
Howard Chu
1b69295a48 Speedup cintcmp 
Now that we know we're always 2-byte aligned...
 2011-09-08 13:10:17 -07:00
Howard Chu
dac3fae3b5 Fix previous commit 2011-09-08 10:08:21 -07:00
Howard Chu
8678fef597 Forgot to commit this 2011-09-07 23:11:14 -07:00
Howard Chu
2e3bc39fa9 Further cursor-based restructuring 
Get rid of all of the redundant MDB_*page structs and other cruft.
 2011-09-07 23:09:45 -07:00
Howard Chu
976a150973 Cleanup unused code 2011-09-06 23:37:37 -07:00
Howard Chu
1f8c3369b9 Fix mdb_move_node again 2011-09-06 23:16:45 -07:00
Howard Chu
f9c8796d0b Fix search_node, add cintcmp 2011-09-06 15:22:53 -07:00
Howard Chu
5e6a864513 Guarantee nodes are 2-byte aligned 
Also fix xcursor_init1 md_dirty flag
Also another mdb_cmp refactoring fix
 2011-09-06 13:50:51 -07:00
Howard Chu
293df78b2b Change MDB_node to depend on 2-byte alignment 2011-09-06 05:17:24 -07:00
Howard Chu
807841b1aa Fix for mdb_cmp refactoring 2011-09-05 16:54:39 -07:00
Howard Chu
963c421a97 Minor cleanup 2011-09-05 14:22:46 -07:00
Howard Chu
2cde97ae94 Use mdb_midl_append/sort instead of _insert 2011-09-05 02:36:24 -07:00
Howard Chu
70a4f6f29d mdb_cmp refactoring 2011-09-05 00:46:32 -07:00
Howard Chu
7bb14a2e79 Cursor stuff working, no major perf gain 2011-09-04 21:33:57 -07:00
Howard Chu
1843fe0b53 Cursors in-progress, broken 2011-09-04 21:33:57 -07:00
Howard Chu
8d89a53165 Use cursor->mc_flags 2011-09-04 21:33:57 -07:00
Howard Chu
7f46832ec5 Begin reimplementing basic ops as cursor ops 2011-09-04 21:33:57 -07:00
Howard Chu
f6edbd7793 Add MDB_{FIRST,LAST}_DUP for cursor_get 2011-09-04 21:33:57 -07:00
Howard Chu
9d821c26c3 Fix mdb_split, fix MDB_GET_BOTH 2011-09-03 20:11:07 -07:00
Howard Chu
e91dae3ed5 Cleanup midl, start documenting internals 2011-09-03 14:27:07 -07:00
Howard Chu
b30d0266e7 Tweak docs 2011-09-02 01:09:11 -07:00
Howard Chu
30736a0ff5 Ugly-as-sin initial Windows port 2011-09-01 16:31:10 -07:00
Howard Chu
2510bea718 API cleanup, doxygen docs for public API 2011-09-01 16:31:10 -07:00
Howard Chu
0f459dd773 Cleanup, fix freelist alloc 
Don't allow new pages for free list to come from the free list.
Otherwise a nasty data self-reference occurs that is too much
trouble to unwind.
 2011-09-01 16:31:10 -07:00
Howard Chu
f7aa0d5e4a Tweak locks, fix race conditions 2011-09-01 16:31:10 -07:00
Howard Chu
d27a7754f3 Reduce excessive memcpy in mdb_split 2011-09-01 16:31:10 -07:00
Howard Chu
027e1daa10 Fix mdb_split, tweak split_indx if space is tight 2011-09-01 16:31:10 -07:00
Howard Chu
01b9fc59fb Fix update of big data items 2011-09-01 16:31:10 -07:00
Howard Chu
13c663f666 Fix free page reclaim and dbs table update 
Can re-use free pages 1 txn earlier
Must update all dbs tables on txn commit
 2011-09-01 16:31:10 -07:00
Howard Chu
94718fab00 More debug, fix MDB_DEL_DUP 2011-09-01 16:31:10 -07:00
Howard Chu
ee69051a7c More debug output 2011-09-01 16:31:10 -07:00
Howard Chu
d54eb7dd81 Add txn_reset / txn_renew 2011-09-01 16:31:10 -07:00
Howard Chu
590c728044 First cut at DUPFIXED support 
Also in cursor_set, check the current page (if already set from
before) before starting over again from the root.
 2011-09-01 16:31:10 -07:00
Howard Chu
720c4b0a3d Set MINKEYS to 2 
For better space utilization
 2011-09-01 16:31:10 -07:00
Howard Chu
66a647e55d Keep re-using dpages instead of freeing them 2011-09-01 16:31:10 -07:00
Hallvard B Furuseth
ca496bd357 Avoid cast-away-const for errstr[] 2011-09-01 16:31:10 -07:00
Hallvard B Furuseth
5b3b522313 Wrap O_DSYNC in MDB_DSYNC. 
If O_DSYNC is not defined, that may be due to poor compiler options.
We could fall back to the less efficient O_SYNC, but it seems better
to let the user learn of the problem and give better compiler options.
 2011-09-01 16:31:10 -07:00
Hallvard B Furuseth
cb7c955220 Simplify: Replace IDL*_CMP() with CMP() 2011-09-01 16:31:10 -07:00
Hallvard B Furuseth
3029bb694d Macro cleanup: Parenthesize, simplify, remove a ; 2011-09-01 16:31:10 -07:00
Hallvard B Furuseth
a1b4144b80 Drop gcc extension ,##__VA_ARGS__. Add DPUTS(). 
C99 says DPRINTF(fmt, ...) must get at least 2 args.  Using DPUTS for 1 arg.
 2011-09-01 16:31:10 -07:00